authbypass-authentication-flaws

Test authentication flows for bypass vulnerabilities and session flaws.

Updated Jun 11, 2026

Search Tags:#authentication #vulnerability assessment #penetration testing #security audit #password security

Ready to run

npx skills add https://github.com/utsavthakur/agenticskills --skill authbypass-authentication-flaws-utsavthakur

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: authbypass-authentication-flaws
Source: https://github.com/utsavthakur/agenticskills/tree/main/authbypass-authentication-flaws
Command: npx skills add https://github.com/utsavthakur/agenticskills --skill authbypass-authentication-flaws-utsavthakur

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the challenge of detecting and preventing authentication vulnerabilities, providing an extensive playbook for penetration testing and security auditing.

Core Features & Use Cases

Comprehensive Playbook: Includes detailed steps for various authentication bypass techniques.
SQL Injection Testing: Detects SQL injection vulnerabilities in login mechanisms.
Password Reset Flaws: Tests for predictable or reusable reset tokens and token expiration issues.
Account Enumeration: Identifies potential username enumeration through error messages and timing analysis.
Brute Force Bypass: Strategies to avoid account lockouts and bypass IP-based restrictions.
Multi-Factor Authentication (MFA) Bypass: Techniques to circumvent MFA challenges and session handling.
OAuth/SSO Account Takeover: Detects vulnerabilities in OAuth and SSO setups.
Session Management Flaws: Identifies session handling issues like token predictability and session invalidation problems.

Quick Start

Use the 'authbypass-authentication-flaws' skill to conduct a full authentication security audit on your system.

Frequently Asked Questions about authbypass-authentication-flaws

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I test for authentication bypass vulnerabilities in a web application?▼

Authentication bypass testing involves systematically probing login flows, password resets, and MFA mechanisms to detect security flaws. This includes checking for SQL injection in login forms, predictable reset tokens, and account enumeration via timing analysis.

What is multi-factor authentication bypass and how does it work?▼

Multi-factor authentication bypass involves circumventing MFA challenges by exploiting session handling flaws or token generation vulnerabilities. It tests whether an attacker can skip the MFA verification step or hijack the session post-login to gain unauthorized access.

How do I prevent account enumeration during the login process?▼

Account enumeration prevention requires testing login error messages and response timing to ensure they do not reveal whether a username exists. Authentication security audits identify these flaws by analyzing server responses during failed login attempts and password reset requests.

How do I test OAuth and SSO implementations for account takeover vulnerabilities?▼

OAuth and SSO takeover testing detects vulnerabilities in single sign-on setups by analyzing token handling, redirect URI validation, and session management. Security audits target these integration points to identify flaws that could allow unauthorized account access.

What are common session management flaws in authentication systems?▼

Common session management flaws include predictable session tokens and improper session invalidation upon logout or timeout. Authentication security testing identifies these vulnerabilities by analyzing token generation patterns and verifying session boundary enforcement.

Can I use automated penetration testing to detect password reset flaws?▼

Penetration testing can detect password reset flaws by testing for predictable reset tokens, reusable tokens, and improper expiration settings. Security audits apply these techniques to identify vulnerabilities in the password recovery workflow.